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Question

One myosin filament in the myofibril of skeletal muscle fibres is surrounded by how many actin filaments.

A
8
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B
2
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C
6
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D
4
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Solution

The correct option is B 6
C. 6
Reason: Sarcomeres are consist of two contractile proteins called myosin and actin, which bind during muscle contraction. There are Six actin filaments surround each myosin filament, and each actin filament is surrounded by three myosin filaments. This arrangement gives the muscles a striated appearance under magnification. so, the correct option is C.

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